PHP Error - themes/pro/cornerstone/includes/classes/Documents/Content.php on line 129'

[mlbass]

Getting this error in the server log
scottsvalleychamber.com [Mon Mar 10 20:16:42 2025] [error] [client 8.210.190.63:0] AH01071: Got error ‘PHP message: PHP Warning: Attempt to read property “hierarchical” on null in /home/sites/37a/d/d653538b6b/public_html/wp-content/themes/pro/cornerstone/includes/classes/Documents/Content.php on line 129’

And this in the WP Site Health
A PHP session was created by a session_start() function call. This interferes with REST API and loopback requests. The session should be closed by session_write_close() before making any HTTP requests.

Please advise

[tristup]

Hi @mlbass,

Thanks for reaching out.
As per the message added in the thread, it seems that there is some PHP Warning. Although you can suppress the warning messages by adding the following code into the wp-config.php, I will still report it to our development team for further investigation.

define( 'WP_DEBUG', false );

Thanks

[mlbass]

Yes, correct. I did not submit this to suppress the error message. I wanted this to be diagnosed and fixed. There are some issues with the site, and what I find is this error. Look forward to the dev team’s fix for it.

[Ismael]

Thank you for the update.

We’ll forward the issue to our channel. In the meantime, please edit the pro\cornerstone\includes\classes\Documents\Content.php, look for this code around line 129:

if ($post_type_obj->hierarchical) {
      $settings['general_post_parent'] = $this->post->post_parent;
}

Replace it with:

if ($post_type_obj && $post_type_obj->hierarchical !== null) {
      $settings['general_post_parent'] = $this->post->post_parent;
}

This should fix the warning above.

Let us know the result.

[mlbass]

Getting this on the server:

scottsvalleychamber.com [Tue Mar 18 15:54:31 2025] [error] [client 47.243.74.123:0] AH01071: Got error ‘PHP message: PHP Warning: Attempt to read property “hierarchical” on null in /home/sites/37a/d/d653538b6b/public_html/wp-content/themes/pro/cornerstone/includes/classes/Documents/Content.php on line 129’
scottsvalleychamber.com [Tue Mar 18 15:54:31 2025] [error] [client 8.210.179.35:0] AH01071: Got error ‘PHP message: PHP Warning: Attempt to read property “hierarchical” on null in /home/sites/37a/d/d653538b6b/public_html/wp-content/themes/pro/cornerstone/includes/classes/Documents/Content.php on line 129’
scottsvalleychamber.com [Tue Mar 18 15:54:31 2025] [error] [client 8.210.66.89:0] AH01071: Got error ‘PHP message: PHP Warning: Attempt to read property “hierarchical” on null in /home/sites/37a/d/d653538b6b/public_html/wp-content/themes/pro/cornerstone/includes/classes/Documents/Content.php on line 129’

[Ismael]

Did you adjust the file as suggested above? This should prevent access to the property hierarchical if $post_type_obj is null.

[mlbass]

[Ismael]

Thank you for the info. This should no longer trigger the same error because the modification already checks if
$post_type_obj is set. We may need WP and FTP access so we can check the issue further. Please provide the info in the secure note.